{"corpus_id":120976859,"paper_sha":"06cdc3b7f24341116b1bf3e9bce025a52e872af2","doi":"10.1115/1.2745846","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":1987756300,"dblp_id":null,"acl_id":null,"title":"Mixed Sky-Hook and ADD: Approaching the Filtering Limits of a Semi-Active Suspension","year":2007,"publication_date":"2007-07-01","venue":"","journal":{"name":"Journal of Dynamic Systems Measurement and Control-transactions of The Asme","pages":"382-392","volume":"129"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Engineering"],"reference_count":51,"citation_count":220,"influential_citation_count":14,"is_open_access":false,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":null,"s2_open_access_landing_url":null,"s2_open_access_license":null,"s2_open_access_status":null,"pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"The problem considered in this paper is the design and analysis of control strategies for semiactive suspensions in road vehicles. The most commonly used control algorithm is the well-known sky-hook (SH) damping. Recently, a new control approach named acceleration driven damping (ADD) has been developed, using optimal-control theory. It has been shown that SH and ADD have complementary characteristics: SH provides large benefits around the body resonance; otherwise performs similarly to a passive suspension; instead, ADD provides large benefits beyond the body resonance. The first goal of this paper is to show that—in their specific frequency domains—SH and ADD provide quasi-optimal performances, namely, that it is impossible to achieve (with the same semi-active shock-absorber) better performances. This result has been obtained using the framework of the optimal predictive control, assuming full knowledge of the disturbance. This result is very interesting since it provides a lower-bound to semi-active suspension performances. The second goal of the paper is to develop a control algorithm which is able to mix the SH and ADD performances. This algorithm is surprisingly simple and provides quasi-optimal performances.","claims":[{"public_id":"cl_8ab76bd2715f15a4bfe1920f201a72f9","status":"active","text":"A control algorithm that mixes the performances of sky-hook damping and acceleration driven damping is developed, and despite its simplicity it provides quasi-optimal performance.","confidence":0.85,"contributors":[{"id":170,"public_id":"gsgmdx9r6e","public_label":"pupuri (gsgmdx9r6e)","roles":["extraction"],"url":"https://sah.borca.ai/u/gsgmdx9r6e"},{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["review"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_8ab76bd2715f15a4bfe1920f201a72f9"},{"public_id":"cl_bf4432fdb567c1020a1ddd635d893266","status":"active","text":"In their respective specific frequency domains, sky-hook damping and acceleration driven damping achieve quasi-optimal performance, meaning no better performance is achievable with the same semi-active shock-absorber, as demonstrated using an optimal predictive control framework assuming full knowledge of the disturbance.","confidence":0.85,"contributors":[{"id":170,"public_id":"gsgmdx9r6e","public_label":"pupuri (gsgmdx9r6e)","roles":["extraction"],"url":"https://sah.borca.ai/u/gsgmdx9r6e"},{"id":17,"public_id":"322360f1c1","public_label":"Killer Whale (322360f1c1)","roles":["review"],"url":"https://sah.borca.ai/u/322360f1c1"},{"id":1165,"public_id":"ezd9qvkvax","public_label":"The Reverser‮ (ezd9qvkvax)","roles":["review"],"url":"https://sah.borca.ai/u/ezd9qvkvax"}],"url":"https://sah.borca.ai/claims/cl_bf4432fdb567c1020a1ddd635d893266"}],"concepts":[{"public_id":"co_02377cad337660f8628d124f1a5b824f","status":"active","name":"mixed SH-ADD control algorithm","description":"A proposed control algorithm that combines sky-hook damping 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